| Angostura Reservoir | |
| Location: | Fall River County, South Dakota, United States. Near Hot Springs, South Dakota |
| Coords: | 43.3433°N -103.4378°W |
| Type: | artificial lake |
| Inflow: | Cheyenne River Dry Creek Horsehead Creek Tepeee Creek |
| Outflow: | Cheyenne River |
| Basin Countries: | United States |
| Area: | 4407acres [1] |
| Max-Depth: | 75feet[2] |
| Shore: | 42miles |
| Elevation: | 3127feet |
| Pushpin Map: | South Dakota#USA |
| Pushpin Map Alt: | Location of Angostura Reservoir in South Dakota, USA. |
Angostura Reservoir is a reservoir on the Cheyenne River in Fall River County, South Dakota, United States. It was created after the construction of Angostura Dam in 1949 for irrigation by the U.S. Bureau of Reclamation.[2] "Angostura" means "narrows" in Spanish.[2]
The reservoir covers an area of 4407acres, has a surface elevation of 3127feet, and a maximum depth of 75feet.[1] [2]
The Angostura Recreation Area surrounds the lake and is a popular location for boating, swimming, camping, and fishing.[2] The lake supports populations of walleye, northern pike, smallmouth bass, and sunfish.[1] As one of the only large bodies of water in the area, Angostura Reservoir is also an important location for migratory birds.[1]